我在keeplive上用了Exclued，但是组件的actived两个钩子就失效了，导致了我的window监听事件失效，我应该怎么绑定和解绑才对，我尝试用Created 和beforeDestory里面分别绑定和解绑也不行。

<template>
  <div>
    <router-link tag="div" to="/" class="hedaer-abs" v-show="showAbs">
      <div class="iconfont header-abs-icon">&#xe624;</div>
    </router-link>
    <div class="header-fixed" v-show="!showAbs" :style="opacityStyle">
      <router-link to="/">
        <div class="iconfont header-fixed-icon">&#xe624;</div>
      </router-link>
      {{this.sightName}}
    </div>
  </div>
</template>

<script>
export default {
  name: 'DetailHeader',
  props: {
    sightName: String
  },
  data () {
    return {
      showAbs: true,
      opacityStyle: {
        opacity: 0
      }
    }
  },
  methods: {
    handleScroll () {
      const top = document.documentElement.scrollTop
      if (top > 60) {
        let opacity = top / 140
        opacity = opacity > 1 ? 1 : opacity
        this.opacityStyle = { opacity }
        this.showAbs = false
      } else {
        this.showAbs = true
      }
    }
  },
  activated () {
    window.addEventListener('scroll', this.handleScroll)
  },
  deactivated () {
    window.removeEventListener('scroll', this.handleScroll)
  }
}
</script>